“The bad boys are getting mature,” says Haider Ackermann of the audience wearing his attitudinal designs, “and they’re trying to straighten up.” For the bad boys loving Haider’s style, his latest collection presents tailoring with swagger: louche silhouettes with both rough and refined touches. This isn’t your grandfather’s suiting. Described as one of fashion’s best colorists since Yves Saint Laurent, Colombian designer Haider Ackermann is known for his avant-garde draping and dynamic tailoring. Black and white silk striped plunge top. Slit plunge neckline. Spaghetti straps.